PSM模型中出现The balancing property is not satisfied，应该怎么办 - Stata专版

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zjdxj0405 发表于 2016-10-29 21:12:01 |AI写论文

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本人新手，在用PSM模型之后出现The balancing property is notsatisfied

Try a different specification of the propensityscore，应该怎么办？如何高效地更换解释变量使其达到满意的匹配，还有numblo( )括号中的值如何确定？万分感谢！

具体结果如下：

Step 1: Identification of the optimal number of blocks

Use option detail if you want more detailed output

******************************************************

The final number of blocks is 11

This number of blocks ensures that the mean propensity score

is not different for treated and controls in each blocks

**********************************************************

Step 2: Test of balancing property of the propensity score

Use option detail if you want more detailed output

**********************************************************

Variable married is not balanced in block 1

Variable married is not balanced in block 2

Variable longmove is not balanced in block 4

Variable nonfarmer is not balanced in block 8

Variable longmove is not balanced in block 8

Variable nonfarmer is not balanced in block 9

Variable longmove is not balanced in block 9

Variable age is not balanced in block 10

Variable married is not balanced in block 10

The balancing property is not satisfied

Try a different specification of the propensity score

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关键词：Satisfied Balancing property Balan Alan property 模型

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黃河泉

发表于 2016-10-30 15:37:25

1. 你用什么指令？2. 根据我的经验，利用（psmatch2）所得之结果"多多少少"都会通不过 balancing conditions，特别是当你的解释变量很多时。(所以在期刊上，很多人有心或无意省略此部分之报告) 3. 有一些方法可确保满足此条件，例如 entropy matching。请参考 https://web.stanford.edu/~jhain/Paper/JSS2013.pdf。